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Get most expensive t-SQL queries in terms of I/O or CPU usage
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USE [YOUR_DATABASE_NAME]; -- Substitute for your database name | |
GO | |
SELECT TOP 10 | |
t.text , | |
execution_count , | |
statement_start_offset AS stmt_start_offset , | |
s.sql_handle , | |
s.plan_handle , | |
s.total_worker_time / 1000 AS total_cpu_time_millis, | |
s.total_worker_time / s.execution_count / 1000 AS avg_cpu_time_millis , | |
s.total_logical_reads , | |
s.total_logical_reads / s.execution_count AS avg_logical_reads , | |
s.total_logical_writes , | |
s.total_logical_writes / s.execution_count AS avg_logical_writes , | |
s.total_physical_reads , | |
s.total_physical_reads / s.execution_count AS avg_physical_reads, | |
s.execution_count , | |
s.last_execution_time , | |
s.last_elapsed_time / 1000 AS last_elapsed_time_millis, | |
s.last_logical_reads, | |
s.last_physical_reads, | |
s.last_worker_time / 1000 AS last_worker_time_millis | |
FROM sys.dm_exec_query_stats AS s | |
CROSS APPLY sys.dm_exec_sql_text(s.sql_handle) AS t | |
WHERE DB_NAME(t.dbid) = 'YOUR_DATABASE_NAME' -- Substitute for your database name | |
ORDER BY -- Comment/uncomment below to order by column of interest | |
avg_logical_reads DESC | |
-- avg_physical_reads DESC | |
-- avg_cpu_time_millis DESC | |
-- last_elapsed_time_millis DESC | |
; |
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